Counts · Duchy of Austria · as at first light, 1 January 1200

Kreuzenstein

A 12th-century castle of the counts of Formbach on a hill above the Danube plain north of Korneuburg, which passed by marriage to the Bavarian counts of Wasserburg.

It comes to the Habsburgs by way of Ottokar II in 1278. Who sat in it on 1 January 1200 is not pinned.

Who he is

Name
Count Dietrich of Wasserburg (attested 1192), if the marriage that brought Kreuzenstein to his house had taken place by 1200 (its date is not given)
Title
Counts of Wasserburg as heirs of the counts of Formbach
Since
not pinned
Born
not pinned
Family
The Formbach counts built Kreuzenstein in the 12th century; it passed by marriage to the counts of Wasserburg (bav's record Wasserburg).
Confidence
low

de.wikipedia Burg Kreuzenstein.

Overlord

Duke Leopold VI of Austria

What it holds

  • Kreuzenstein castle above Leobendorf

How it was acquired

Formbach inheritance by marriage (date not given).

How things stand that morning

Not pinned: Wasserburg if the inheritance had passed by then.

Wealth

Estates north of the Danube.

Military

Kreuzenstein castle.

Places of note

  • Kreuzenstein castle: Formbach castle, 12th century

Where the sources disagree

Evidence: Only the builders and the passage by marriage are attested in what we read.

On the map: A disc for a lone castle.

Primary sources for Austria

Chronicles, registers, sagas and inscriptions written in or near 1200 that cover this entry. Each has its own page with editions, translations and where to read it.

Sources and studies

  1. Burg Kreuzenstein, de.wikipedia

Last revised 4 November 2026. Published 4 November 2026. Suggest a correction on the OMNIA Discord.